4.3
AC Characteristics
Table 4-3.
AC Characteristics
Applicable over recommended operating range from T
AI
= -40 to +85°C, V
CC
= As Specified, CL = 1 TTL Gate and 30pF
(unless otherwise noted).
Symbol
f
SCK
Parameter
SCK Clock Frequency
Voltage
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
4.5 – 5.5
2.5 – 5.5
1.8 – 5.5
20
40
80
20
40
80
100
100
200
100
100
200
100
100
200
5
10
20
5
10
20
5
10
20
5
10
20
0
0
0
0
0
0
20
40
80
Min
0
0
0
Max
20
10
5
2
2
2
2
2
2
Units
MHz
t
RI
Input Rise Time
μs
t
FI
Input Fall Time
μs
t
WH
SCK High Time
ns
t
WL
SCK Low Time
ns
t
CS
CS High Time
ns
t
CSS
CS Setup Time
ns
t
CSH
CS Hold Time
ns
t
SU
Data In Setup Time
ns
t
H
Data In Hold Time
ns
t
HD
Hold Setup Time
ns
t
CD
Hold Hold Time
ns
t
V
Output Valid
ns
t
HO
Output Hold Time
ns
AT25128B/256B [DATASHEET]
Atmel-8698E-SEEPROM-AT25128B-256B-Datasheet_012015
5
MICROCHIP [ MICROCHIP TECHNOLOGY ]
